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US 12,116,820 B2Granted
Monitoring apparatus and monitoring method
AssigneeFuji Electric Co., Ltd.
InventorsHidenori Matsushima, Kenji Fujita
Life of this patent
Estimating the term…
Abstract
A monitoring apparatus includes a sensing circuitry configured to sense a locked or released state of a door of a railway vehicle, or sense an open or closed state of the door, and a processor. The processor acquires an output of the sensing circuitry, and position information in an opening or closing direction of the door, and determines an abnormality in a configuration related to an opening or closing operation of the door, based on a match between the acquired output of the sensing circuitry and the position information.
Claims17
A monitoring apparatus comprising:
- a sensing circuitry including
- a first switch configured to sense a locked or released state of a door of a railway vehicle and output a first signal indicating the locked or released state of the door,
- a second switch configured to sense an open or closed state of the door and output a second signal indicating the open or closed state of the door, and
- an encoder configured to sense a position in an opening or closing direction of the door and output a third signal indicating the position;
- a storage device configured to store a program;
- and
- a processor configured to execute the program and perform a process including
- acquiring an output of the sensing circuitry, including the first, second, and third signals,
- determining an abnormality in a configuration related to an opening or closing operation of the door when the locked or released state of the door indicated by the first signal does not match a locked or released state of the door anticipated at the position of the door indicated by the third signal, or when the open or closed state of the door indicated by the second signal does not match an open or closed state of the door anticipated at the position of the door indicated by the third signal, and
- employing different coping strategies to determine a presence or absence of the abnormality in the configuration related to the opening or closing operation of the door.
7 more elements
A monitoring method to be implemented by a computer of a monitoring apparatus having a first switch, a second switch, a third switch, and an encoder, the monitoring method comprising:
- acquiring an output of a sensing circuitry, including a first signal from the first switch configured to sense a locked or released state of a door of a railway vehicle indicating the locked or released state of the door, a second signal from the second switch configured to sense an open or closed state of the door indicating the open or closed state of the door, and a third signal from an encoder configured to sense a position in an opening or closing direction of the door indicating the position;
- determining an abnormality in a configuration related to an opening or closing operation of the door when the locked or released state of the door indicated by the first signal does not match a locked or released state of the door anticipated at the position of the door indicated by the third signal, or when the open or closed state of the door indicated by the first signal does not match an open or closed state of the door anticipated at the position of the door indicated by the third signal;
- and
- performing a corrective activity using a coping strategy based on the determined abnormality.
1 more element
An apparatus comprising:
- a sensing circuitry including
- a first switch configured to sense a locked or released state of a door of a railway vehicle and output a first signal indicating the locked or released state of the door,
- a second switch configured to sense an open or closed state of the door and output a second signal indicating the open or closed state of the door, and
- an encoder configured to sense a position in an opening or closing direction of the door and output a third signal indicating the position;
- a storage device configured to store a program;
- and
- a processor configured to execute the program and perform a process including
- acquiring an output of the sensing circuitry, including the first, second, and third signals,
- determining an abnormality in a configuration related to an opening or closing operation of the door when the locked or released state of the door indicated by the first signal does not match a locked or released state of the door anticipated at the position of the door indicated by the third signal, or when the open or closed state of the door indicated by the second signal does not match an open or closed state of the door anticipated at the position of the door indicated by the third signal, and
- employing different coping strategies to determine a presence or absence of the abnormality in the configuration related to the opening or closing operation of the door, based on at least one of frequency and continuity of the determined abnormality.
7 more elements
Dependencies are inferred from the claim text.